Microwave Gas Breakdown in Tunable Evanescent-Mode Cavity Resonators

被引：24
|
作者：
Semnani, Abbas [1 ,2 ]
Chen, Kenle [1 ,2 ]
Peroulis, Dimitrios [1 ,2 ]
机构：
[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA
[2] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2014年 / 24卷 / 05期
基金：
美国国家科学基金会;
关键词：
Evanescent-mode cavity resonator; gas breakdown; high power; micro-plasma;
D O I：
10.1109/LMWC.2014.2306897
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Microwave gas breakdown in strongly-coupled evanescent-mode cavity resonators in atmospheric pressure and room temperature is investigated both numerically and experimentally. This high-Q resonator is widely tunable by changing the gap between its loading post and top wall. In this letter, we study the effect of different gap spacings on breakdown characteristics of this resonator. Good agreement is observed between measured breakdown powers and ones by plasma simulations for resonators with gaps of 14.8-51.2 mu m, working in the 6-8.25 GHz frequency range with input breakdown power in the range of 45-48 dBm.
引用
收藏
页码：351 / 353
页数：3
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